baber/WOPTO huggingface dataset:
Patent GB-1091616-A (GB)
Title: Distillation plant
Inventor: STEWART RONALD MACPHERSON
IPC: B01D1/28
Filed: 1966-06-01
Abstract: 1,091,616. Evaporators, multi-stage; desalination of sea water. ROLLS-ROYCE Ltd. June 1, 1966, No. 24488/66. Heading B1B. In a distillation plant comprising a vapourcompression still 22 and a multi-stage flash evaporator 33, 34, the compressor 25 of still 22 being driven by steam turbine 4, the non- distilled liquid flowing out of still 22 passes through heat exchanger 7 where it is heated by exhaust steam from the turbine; the liquid is then introduced into the reservoir 14 of flash chamber 15. The steam condensate is pumped from heat exchanger 7 to the boiler 1 which supplies steam to turbine 4. The boiler may be heated by a gas turbine engine. The plant is suitable for the distillation of sea water which is supplied through line 35 and, together with recycle brine from the last flash chamber, flows through conduit 17 which traverses the vapour-spaces of the flash chambers. The vapours evolved in the flash chambers condense on conduit 17, the condensate being collected in trays 20. The sea water, having been preheated in conduit 17, flows through duct 21 into still 22. Below still 22 is a chamber 30 in which the mixture of water droplets and steam, discharged from coil 27, is cooled by the sea water leaving still 22 through coil 13a. The condensate flows from chamber 30 to tray 20 in flash chamber 15. Stages 34 of the flash evaporator function as heat-rejection stages. Desalinated water is withdrawn from the system through line 44. Also described is a distillation plant comprising a vapour-compression still and a steam turbine in association with a multiple-effect evaporator. Steam from the turbine passes, together with compressed process vapours, into the heating-coil of the vapour-compression still; and the fluid flowing out of this coil is conducted into the heating- coil of the first effect of the multiple-effect evaporator. A plant comprising both a multistage flash evaporator and a multiple-effect evaporator is mentioned.
Patent GB-1386165-A (GB)
Title: Water-soluble monoazo dyestuffs and process for preparing them
IPC: C09B62/51
Filed: 1972-05-24
Abstract: 1386165 Monoazo dyes HOECHST AG 24 May 1972 [26 May 1971] 24495/72 Heading C4P New monoazo dyes of formula wherein A and A<SP>1</SP> are radicals of the benzene series, Z 1  is a bivalent bridging member, X is a group bound to A and/or A<SP>1</SP> of formula -SO 2 CH 2 CH 2 Z or -SO 2 CH=CH 2  wherein Z is a radical capable of being split off by an alkaline agent, or OH, m is 0 or 1 and n is 1 or 2 are prepared by coupling a diazo compound of an amine H 2 N-[-A-(Z 1 -A<SP>1</SP>) m -]-(X) n  with 2 - naphthol - 8 - sulphonic acid and when Z is OH converting this to an -O.SO 3 H or group by reaction with a sulphating or phosphating agent. The dyes are used to colour leather and fibrous materials of silk, wool, synthetic polyamides and polyurethanes and in particular cellulose fibres in the presence of alkali in yellow to red shades.
Patent GB-942469-A (GB)
Title: Improvements in submarine cables for transmitting power
IPC: H01B7/282
Filed: 1960-07-14
Abstract: 942,469. Cables. COMPAGNIE GENERALE D'ELECTRICITE. July 14, 1960 [July 30, 1959], No. 24521/60. Drawings to Specification. Heading H1A. A submarine, D.C. power cable insulated with impregnated paper has a moisture-impervious layer of metal bands wrapped overlappingly on to the paper, and themselves covered by a sheath of plastics material, the intermediate metal sheath being brought to a positive potential, e.g. by a battery. It is stated that this serves to prevent the diffusion of sea water into the sheath due to electro-osmosis.
Patent GB-187108-A (GB)
Title: A stopping or turning indicator for road vehicles
IPC: B60Q1/34
Filed: 1921-09-16
Abstract: 187,108. Warren, A. Sept. 16, 1921. Road-vehicle signals; lamp signals.- A direction-indicator comprises an arm c pivoted in a bracket a at the rear of the vehicle, operated by a handle through a Bowden wire k. The arm carries a lamp d with red and green bulbs and has terminals e co-operating with terminals on the bracket in such a manner that one of the bulbs is illuminated when the arm is in each of two signalling positions. A spring is provided to return the arm to normal position.
Patent GB-443118-A (GB)
Title: Improvements in and relating to welding circuits
IPC: B23K11/24
Filed: 1934-08-27
Abstract: 443,118. Stroboscopic apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 27, 1934, No. 24638. Convention date, Aug. 26, 1933. [Class 97 (i)] In a welding circuit in which the current comprises regularly occurring impulses some of which are intermittently suppressed, the duration of each series of impulses is indicated by means which consists of a light-emitting device adapted to flash synchronously with the impulses and adapted to be rotated at a predetermined uniform speed or adapted to co-operate optically with a member which is rotated at a predetermined uniform speed to produce series of light spots, the relative lengths of which indicate the time duration of the series of impulses. In a circuit which is described in Specification 416,374, [Group XXXV], one or both of the grid-controlled valves 18, Fig. 1, or the valves 24, are used as the light-emitting device and are housed in a container 19 provided with a groundglass window 20. A disc 21 is provided with concentric circles of evenly-spaced holes or painted spots or sectors, the number of holes in each circle being different, and is driven by a synchronous motor 22 connected to the supply 11. By gear- or pole-changing means the motor 22 may be driven at different speeds. The determination of the spacing of the holes &c. is described in the Specification. In a modification, the light source consists of a neon tube which is connected across the resistance 34 and is connected in series with a resistance and in parallel with a condenser. A copper-oxide rectifier, adapted to be shortcircuited, may be connected in series with the tube. Alternatively, the tube may be connected across the secondary windings 15 or 36 and will flash during periods in which the current impulses are suppressed; it may be connected either to the primary winding of the transformer 14 or to winding 15 through a double-pole change-over switch. The tube 80, Fig. 5, may be energized by highvoltage peaks through a transformer provided with an air gap 89. In another form, the neon tubes 97, Fig. 10, are mounted on a member 98 which is rotated by the motor 22 and is supplied through slip rings 99.
Patent GB-803218-A (GB)
Title: Improvements in rail spike extractors
Inventor: GAYES CYRIL ERNEST
IPC: E01B29/26
Filed: 1954-08-25
Abstract: 803,218. Spike extractors. PETERS & CO., Ltd., G. D. Dec. 28, 1955 [Aug. 25, 1954], No. 24698/54. Class 61. A rail spike extractor comprises a lever 6 having a heel which provides a rolling fulcrum, a link 16 slung from a pivot 15 in the toe and a swivelling foot 18 on the link having lateral projections 20, 21 to engage the rail spike. The heel 11 comprises a pair of lateral projections on the lower edge of the lever 6, the projections being spaced from the toe of the lever by approximately the distance which separates the spike 4 from the rail 1. The pivot 15 is formed by the cranked end of link 16 and rides in a semi S-shaped slot 14 thus enabling the link to be hung from either the upper or lower end of the slot. The foot 18 has a cup-shaped recess 19 which bears on a part spherical projection 17 provided on the end of the link 16. The lever has secured thereto a wooden handle 7 by screws or rivets 8.
Patent GB-466770-A (GB)
Title: Supply arrangement for television apparatus
IPC: H04N3/18
Filed: 1935-09-05
Abstract: 466,770. Converting. RADIOAKT.- GES. D. S. LOEWE. Sept. 5, 1935, No. 24756. Convention date, Sept. 8, 1934. [Class 38 (ii)] [Also in Group XL] Relates to the supply to television receiving apparatus and consists in supplying the anode 14 of the cathode-ray tube 12 and the relaxation oscillation generators 21 through a voltage doubling rectifier and the receiver separately through a full wave rectifier 3. This enables separate adjustment of the various elements to be effected. The anode 14 is supplied from the full output voltage of the voltage doubling rectifier. The supply for the relaxation oscillation generators 21 is tapped off from across the condenser 7 through an impedance 32 which may be varied to give adjustment. To give the required voltage for the anode 14 the transformer 4 has an additional secondary winding 1 which is included in the circuit of the upper rectifying valve. A resistance 5 is provided in the primary circuit of the transformer to enable adjustment to be effected. The effect of ripple in the supply to the receiver 33 is overcome by tapping the output to the control electrode of the tube 12 from across the diagonal of a bridge formed by a resistance 25 in series with the final valve 24 of the receiver and a potentiometer 26 across the supply.
Patent GB-1509205-A (GB)
Title: Method of adjusting the relative volumes of the strings of a musical instrument
IPC: G10H3/18
Filed: 1975-06-10
Abstract: 1509205 Electrophonic musical instruments A NYLEN 10 June 1975 [11 June 1974] 24780/75 Heading G5J Vibrations of the violin strings 3a-3d, which are at least partly made of magnetizable material, are transduced by the pick-up coils 4, 5 which have no cores and are connected to an amplifier (not shown). There may be magnets (Fig. 2, not shown) below the solenoids to provide an echo effect. The strings are magnetized by moving the magnet 10 in its plastics sheath 8 along the strings and are balanced by magnetizing them for different lengths.
Patent GB-680908-A (GB)
Title: Improvements in or relating to the production of collars, cuffs and the like
IPC: A41B3/10
Filed: 1949-09-28
Abstract: A process for the production of a detachable clothing part, such as a collar or cuff, comprises cutting from a sheet of thermoplastic material at least one surface of which simulates woven fabric, one or more pieces of the shape of the article desired and subjecting at least the marginal portions thereof to high frequency heating and pressure.  Button- or stud-holes may be stamped in the material, the edges being reinforced and moulded under heat and pressure.  The article may also be moulded along the foldline.  Specification 621,978 is referred to.
Patent GB-736750-A (GB)
Title: Improvements in or relating to the treatment of titanium metal surfaces
IPC: C23G1/32
Filed: 1953-09-08
Abstract: Titanium surfaces are treated for the removal of adherent scale with a molten alkali metal polysulphide composition until the scale is loosened, whereupon the polysulphide composition and loosedned scale are removed from the surface.  The composition may comprise sodium or potassium polysulphides or both and may be buffered by the inclusion of a halide of an alkali metal, alkaline earth metal, or magnesium.
Patent GB-734655-A (GB)
Title: Mechanical dung remover
IPC: A01K1/01
Filed: 1953-09-10
Abstract: 734,655. Step-by-step conveyers. JASPER, H. Sept. 10, 1953 [Sept. 10, 1952], No. 25095/53. Class 78 (1). A push-plate conveyer for removing dung from a channel in a stable composed of straight and curved sections comprises a continuous push-rod in each straight section and an articulated push-rod in each curved section. The push plates 41, Fig. 4, are mounted freely on bolts 42 carried by the push-rod 31 and their movement from the inactive position parallel to the rod to the propelling position at right angles thereto is facilitated by the provision of raised parts 47 on the bottom of the channel 45. Each articulated section of the conveyer comprises a series of members 33, Fig. 3, and connecting links 34. The links carry rollers 36 which run on rails 37. The ends of the conveyer are connected by spring means to the ends of a driving chain 32, Fig. 2, which is driven by a toothed wheel 26 on the output shaft 25 of a gear-box 22. The driving.motor 21 has a reversing switch 23, the arm 24 of which is actuated by members carried by the chain. Reference has been directed by the Comptroller to Specification 668,787.
Patent GB-1515337-A (GB)
Title: Remote-control manipulator
IPC: B25J9/18
Filed: 1975-06-11
Abstract: 1515337 Master-slave control system COMMISSARIAT A L'ENERGIE ATOMIQUE 11 June 1975 [19 June 1974] 25101/75 Heading G3N A control system has a master assembly a and a slave assembly b with effort return. Master control lever 1a rotates about shaft 2a actuated by an electric torque motor 3a driving a position detector 5a via pinions 4a. The slave assembly is similar and they are separated by a barrier 6 but connected by lines 7b, 12b. Preamplifiers 9a, 9b each receive the position signals and, as shown for preamplifier 9a, the amplifier 13a gives the position difference which is differentiated in unit 14a to give the velocity difference, amplified in unit 15a, and its difference from the position signal found at 16a. This difference passes to power amplifiers 10a, 10b, each comprising a current amplifier and resistor, which control motors 3a, 3b with a current proportional to the voltage derived from the preamplifier stage. The currents to motors 3a, 3b can be equal, proportional or in a logarithmic relationship. In a second embodiment Fig. 2 (not shown) the effects of viscous friction are corrected using a further differentiator on the slave assembly and/or at the master assembly. A second differentiator at both assemblies corrects for inertia by finding acceleration. Dry friction is corrected for using a threshold circuit. In another embodiment Fig. 3 (not shown) a torque detector is provided. The slave assembly is in a deleterious medium so most of the circuits are adjacent the master assembly.
Patent GB-284566-A (GB)
Title: Improvements in or relating to control apparatus for electrical apparatus, such as motors
IPC: H02J13/00
Filed: 1926-11-23
Abstract: 284,566. Scarf, C. T., Last, C. H., Gowan, S., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 23, 1926. Cut-out arrangements. - A gate-end switch similar to that described in Specification 262,553 is controlled over a pilot circuit by a pilot switch handle 60 located on the casing 20 of the motor. When the handle 60 is moved to the off " position a circuit is completed from power conductor 22 through coil 123, switch 128, casing 20, switch 70 to power conductor 23. If the circuit interrupter has failed to open, the coil 123 will be energized and cause a detent 127 to enter a hole 128 and so prevent further movement of the handle 60, until the circuit interrupter is opened manually. In a modification, the switch 124 completes a short circuit between the power conductors through a current limiting resistance, and so causes energization of a relay 7, which through other relays opens the circuit of the coil holding the circuit interrupter closed. The system is applicable to the control of a power supply having no earthed neutral point.
Patent GB-1374557-A (GB)
Title: Corona charging apparatus
IPC: G03G15/02
Filed: 1973-05-25
Abstract: 1374557 Corona charging device EASTMAN KODAK CO 25 May 1973 [25 May 1972] 25145/73 Heading G2H The device comprises a flexible wire 10 depending freely from a support 12 with its free end 13 spaced from a conductive control electrode 17 which, in use, is positioned over a dielectric surface S to be charged. The wire 10 is sufficiently flexible and its spacing from the electrode 17 is such, that it is deflectable when a potential is applied to it so that it oscillates randomly to uniformly charge the whole surface S. The control electrode 17 may be a grid 18 or a closed loop (30) of conductive material. The fixed end 11 of the wire 10 is connected to a high voltage source 15 and the electrode 17 is electrically biased, either by connection to an external source (not shown) or by being connected to ground via Zener diode 20, to the desired level of charge potential of the surface S.
Patent GB-1108939-A (GB)
Title: Improved rotary bearing and a hydraulic axial piston pump or motor including such a bearing
Inventor: RANKIN JOHN
IPC: F01B3/00
Filed: 1964-06-17
Abstract: 1,108,939. Bearings. DOWTY TECHNICAL DEVELOPMENTS Ltd. 14 June, 1965 [17 June, 1964], No. 25204/64. Heading F2A. [Also in Division F1] In a rotary bearing one of the bearing surfaces of two relatively rotatable members has at least a pair of separate recesses 32, 33, 34, 35 substantially continuously closed by the bearing surface of the other member which are intermittently supplied with liquid through respective restrictors 36, 37, 38, 39. The recesses and restrictors which are in the surface of the valve plate of an axial piston pump or motor are intermittently connected to ports 43 and 42, communicating with the supply and delivery ports 29 and 31 of the plate, by means of dimples 47 in the bearing surface of the pump or motor cylinder block. Pairs of recesses and restrictors may be provided in both bearing surfaces. An annular groove 49 and a recess 48 in the valve plate collect leakage liquid which is returned through recesses 52, 53 and a slot (51), Fig. 2 (not shown), in a spigot (3) supporting the cylinder block to a housing surrounding the block. Reference has been directed by the Comptroller to Specification 984,721.
Patent GB-426541-A (GB)
Title: Improvements in or relating to the treatment of chocolate and the like masses
IPC: A23G1/18
Filed: 1934-09-01
Abstract: 426,541. Tempering or mixing chocolate. BOGGILD, C. B. K., and JACOBSEN, M., (trading as BOGGILD & JACOBSEN), 2, Kampmannsgade, Copenhagen. Sept. 1, 1934, No. 25236. [Class 86] A machine for tempering chocolate comprises a jacketed tank in which the temperature is controlled by thermostats effecting the operation of a valve in the jacket connections and of a heating unit, the tank being fitted with a central pillar around which stirrers are rotated in planetary fashion by gearing including a chain passing round a fixed sprocket. The stirrers 18, Fig. 1, are mounted on interengaged shafts 17, 14, the latter having a chain wheel 19 round which is a chain passing round a fixed sprocket 20 ; the shaft 14 is also fitted with a gear 11 in mesh with a driving pinion 10. The discharge door 22, Fig. 4 is mounted in the base of the machine with which it forms a continuous surface and slides on rails 27 ; its rear edge is sloped. One of the thermostats, placed in the chocolate mass, controls the admission valve for the cooling water, and, on a certain temperature being reached, renders a second thermostat, placed in the cooling water, operative, the latter thermostat controlling a heating member and the admission valve.
Patent GB-1030655-A (GB)
Title: Improvements in staple fibre blends
IPC: D02G3/22
Filed: 1963-06-25
Abstract: Yarn, which when incorporated into fabrics e.g. carpets, is intended to reduce pilling and fuzzing, is spun from a blend of crimped synthetic staple fibres, one component (constituting 25-90% by weight of the blend) consisting of low-denier, low-toughness, long polyamide fibres and the other of high-denier, high-toughness, short fibres. The respective fibres may have 8-22 and 6-12 crimps per inch, denier 8-15 and 20-40, staple lengths at least three inches and not more than two inches. "loop-toughness" (see U.S.A. Specification 3,050,822) of 2-27 and at least 50, and the longer fibres may comprise frequently spaced weak spots e.g. at least one per inch, along their length. All or some fibres may contain small internal voids and the short fibres may contain 2-20% by weight of a poly (alkyl ether) in order to render the yarns and fabrics resistant to soiling and the accumulation of static changes.  The fibres may be initially mixed e.g. manually, and a complete and intimate blend allowed to occur when the fibres are subsequently processed into yarn.  Long and short fibres may be of a polyamide e.g. polyhexamethylene adipamide, sebacamide or isophthalamide or polycaproamide, or interpolyamides or melt blends of two or more thereof: alternatively, the short fibres may be other synthetic fibres e.g. of polyesters such as polyethylene terephthalate, polyvinyls such as polyacrylonitrile, or polyolefins such as polyethylene and polypropylene.  The blend may include (less than 50%) components of other fibres e.g. long, low-denier, high-toughness fibres, wool or polyethylene fibres.
Patent GB-705525-A (GB)
Title: A new or improved apparatus for determining deviations from a standard
Inventor: GREENWOOD FRANK ALFRED
IPC: G08C19/02
Filed: 1951-10-30
Abstract: 705,525. Counting-apparatus. T.M.M. (RESEARCH), Ltd. Oct. 28, 1952 [Oct. 30, 1951], No. 25348/51. Class 106 (1). [Also in Groups XXXVIII and XL(b)] The proportion of a substance continuously fed to a photo-electric gauge which falls outside predetermined limits is determined by means producing pulses at a constant rate which are fed to two counters one of which counts the total number of pulses generated and the other of which counts only those pulses produced when the substance is outside the predetermined limits. As shown, a photo-electric cell 10 receives an enlarged image of a continuously fed yarn 100 and provides a voltage which is backed off by a variable reference voltage produced by a circuit 18 (more fully described in Specification 691,491, [Group XL (b)]. The difference voltage is fed to either a milliameter 17 or a servo mechanism 20 depending on the position of switch 22. A cam 15, Fig. 3, driven by the motor feeding the yarn closes contacts 16, the total number of pulses thus produced by a battery 19 being counted on a counter 13. The milliameter or servo mechanism positions a further cam 23 in accordance with the diameter of the yarn as determined by the photo-cell so that if the diameter of the yarn falls outside predetermined limits contacts 21 are closed and the pulses produced by cam 15 are counted by counter 14 also. Thus the ratio of the two counter readings gives the proportion of the yarn outside the prescribed limits. A pair of deviation counters may be used, one counting pulses produced when the yarn is oversized and one counting when it is undersized. A pair of counters switched in at different deviations may be used.